﻿// Copyright (c) 2014. Evgeny Nazarov
// http://guardly.codeplex.com/
// All rights reserved.
// 
// Redistribution and use in source and binary forms, 
// with or without modification, are permitted provided 
// that the following conditions are met:
// 
//     * Redistributions of source code must retain the 
//     above copyright notice, this list of conditions and 
//     the following disclaimer.
//     
//     * Redistributions in binary form must reproduce 
//     the above copyright notice, this list of conditions 
//     and the following disclaimer in the documentation 
//     and/or other materials provided with the distribution.
//     
//     * Neither the name of contributors may be used to endorse 
//     or promote products derived from this software 
//     without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
// CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
// SUCH DAMAGE.
// 
// [This is the BSD license, see http://www.opensource.org/licenses/bsd-license.php]
using NUnit.Framework;

namespace Guardly.Tests
{
    using Guardly.Tests.Helpers;
    using Shouldly;

    [TestFixture]
    internal sealed class ArgumentFixture
    {
        [Test, TestCaseSource(typeof (TestData), "GetExtendedMessages")]
        public void ShouldCreateWithMember(string member)
        {
            // When
            var instance = TestUtility.CreateArgument(() => member);

            // Then
            instance.ShouldNotBe(null);
            instance.Name.ShouldBe("member");
            instance.Value.ShouldBe(member);
        }

        [Test, TestCaseSource(typeof(TestData), "GetExtendedMessages")]
        public void ShouldHaveSameHashCodeForSameMember(string member)
        {
            // Given
            var instanceOne = TestUtility.CreateArgument(() => member);
            var instanceTwo = TestUtility.CreateArgument(() => member);

            // When
            var hashCodeOne = instanceOne.GetHashCode();
            var hashCodeTwo = instanceTwo.GetHashCode();

            // Then
            instanceOne.ShouldNotBeSameAs(instanceTwo);
            instanceOne.ShouldBe(instanceTwo);
            hashCodeOne.ShouldBe(hashCodeTwo);
        }

        [Test, TestCaseSource(typeof(TestData), "GetNotNullObjects")]
        public void ShouldHaveDifferentHashCodeForDifferentMember(string memberOne, string memberTwo)
        {
            // Given
            var instanceOne = TestUtility.CreateArgument(() => memberOne);
            var instanceTwo = TestUtility.CreateArgument(() => memberTwo);

            // When
            var hashCodeOne = instanceOne.GetHashCode();
            var hashCodeTwo = instanceTwo.GetHashCode();

            // Then
            instanceOne.ShouldNotBeSameAs(instanceTwo);
            instanceOne.ShouldNotBe(instanceTwo);
            hashCodeOne.ShouldNotBe(hashCodeTwo);
        }
    }
}
